武汉城市湖泊环境地球化学研究--以东湖为例

选择武汉市具有代表性的城市湖泊——东湖，进行湖泊底积物及湖水的环境地球化学研究，主要研究了湖水电导率(Ec)的变化趋势和湖泊底积物中重金属Cu、Pb、Zn、Cd、Hg等元素含量的变化规律，最后得出：武汉东湖已经开始受到重金属污染，重金属污染是人类活动直接影响的后果。     

重庆市近郊蔬菜基地土壤和蔬菜中重金属的质量现状

通过对重庆市近郊蔬菜基地土壤和蔬菜中重金属的监测和评价得出：重庆市近郊蔬菜基地部分土壤受到 Ｃｄ和Ｈｇ的污染；部分蔬菜受到Ｐｂ和Ｃｄ的污染。     

印刷线路板厂含铜污泥固化处理工艺研究

研究采用水泥作固化基材固化处理某印刷线路板厂酸性废水用石灰混凝所产生的含铜、锡、金的污泥 ,对固化块在不同 pH的水中重金属Cu2 +的浸出实验结果表明 :水泥固化处理该混凝污泥效果良好 ,控制合适的条件 ,可得到混合性能好、初凝时间适当、抗压强度较好的固化块。Cu2 +的浸出率低于允许浸出浓度。混凝过程中加入硫脲硅酸钠等助剂 ,可提高固化效果。研究还对几种不同配比的固化块抗压强度进行了探讨。     

催化裂化废水连续萃取脱酚研究

选用焦化粗柴油为萃取剂，在转盘萃取搭连续试验装置中，对催化裂化含酚废水进行脱酚预处理。结果表明，用焦化粗柴油做萃取剂，进水ｐＨ值为８０～９０不加调节；油水比（体积比）１７∶１～２１∶１；转盘转数１１００ｒ／ｍｉｎ，酚萃取脱除率达到８５％以上。萃取后的粗柴油依据现有工艺而进行加氢精制，不需进行再生等后处理。整个萃取工艺简单易行，能满足预处理的要求     

金属板料成形摩擦机理研究

对不锈钢板料和碳钢在金属塑性成形时 (高接触压力 )的摩擦机理进行了实验研究 ,分析了压力对滑动阻力和摩擦系数的影响 ,得出了随压力增大摩擦系数逐渐变小的结论 ,从而为应用有限元法进行板料成形过程中塑性变形的计算机模拟提供真实的边界条件打下了基础。     

大气飘尘对大鼠肺细胞的毒性比较

采用大白鼠气管内注入飘尘后分析肺灌洗液的方法，比较了上海不同地区飘尘对大鼠肺细胞的毒性；再运用毒性指数及效应指数，综合评价了上海市不同地区大气飘尘污染的状况。研究表明：从肺灌洗液的生化成份分析及细胞分类显示，以彭浦新村、隆昌路平凉路、康定路胶州路３个点的飘尘毒性较大。综合评价结果，彭浦新村的效应指数最大，以后依次为康定路胶州路、鲁班路斜土路、青云路、隆昌路平凉路等。     

Reduction of sera requirements in amniotic fluid cell culture

Reduction in serum requirement for culture of primary human amniotic fluid cells can be achieved by the addition of 10 growth-promoting factors to the nutrient medium. This supplemented medium preserves cell types normally found in amniotic fluid cell cultures supplemented with 20–30 per cent fetal bovine serum. The volume of amniotic fluid required to initiate culture can be as little as 1 ml. Amniotic fluid samples contaminated with red blood cells with no visible clot also grow well in the low serum medium. Cell-free amniotic fluid combined with equal parts of supplemented medium is useful in initiating cell culture.     

The effect of oxygen tension on colony formation and cell proliferation of amniotic fluid cellsin vitro

The effects of reduced oxygen concentrations in the gas phase over the culture medium on colony formation and cell proliferation were investigated in high and low cell density primary and secondary cultures of amniotic fluid cells. Using two standard culture methods (25 cm² plastic flasks and Leighton type tubes) a significantly reduced culture time was observed at high cell density for mass cultures by incubation within a low oxygen tension gas phase (2.5 per cent to 7.5 per cent O₂) instead of conventional air (18 per cent O₂). At low cell density colony formation was significantly enhanced in cultures grown at reduced oxygen tension. Using gas permeable membranes as support, lowering the oxygen tension from 7.5 per cent to 2.5 per cent yielded an increase in plating efficiency of cells from approximately 5 per cent to 25 per cent, whereas plating efficiency was less than 2 per cent for cells grown at ambient 18 per cent O₂. It is suggested that low oxygen tension in the gas phase is an effective means of enhancing clonal growth in amniotic fluid cell cultures, thereby reducing both culture time and risk of culture failure.     

GW型加热炉烟气净化系统研究设计

为适应日益严格的环保要求,根据GW型燃油加热炉烟气排放特征和排放规律,设计采用循环流化床工艺进行除尘脱硫。中试结果表明:在最佳工况条件下,系统除尘效率可达97%～98%,脱硫效率达80%～90%,达到国家燃油锅炉一类区域排放标准要求。     

冶金污泥稳定化/固化处理工艺研究

冶金工业在生产过程中产生大量酸性废水.对这类废水目前通常采用石灰中和沉淀处理.文章中通过研究采用水泥和工业废渣作固化基材固化处理冶金工业酸性废水用石灰混凝所产生的含铜、砷的污泥,分析了影响固化块抗压强度的多种因素,采用固体废物浸出毒性浸出方法对浸出率进行实验探讨.